Apparatus for cutting waste from embroideries.



A. TSCHERNE.

APPARATUS FOR CUTTING WASTE FROM EMBROIDERIESI APPLICATION FILED MAR. 7. 1910.

1 206,946. Patented Dec. 5, 1916.

4 SHEETS-SHEET I.

Wimemes:

- ,1 fi'di an;

I r Mowers FL'HIRS ca. PNDIO uIMo.,WAsNInu|uN. u L

A. TSCHERNE. APPARATUS FOR CUTTING WASTE FROM EMBROIDERIES.

APPLICATION FILED MAR. 7. I910- Patented Dec. 5, 1916.

4 SHEETS-SHEET 2.

A. TSCHERNE. APPARATUS FOR CUTTING WASTE FROM EMBROIDERIES.

APPLICATION FILED MAR. 7. 190.

ml 5:55:52 I 555:2:

4 SHEETS-$HEET 3.

Patented Dec. 5, 1916.

u :u: a

ll iinasses:

A. TSCHERNE.

APPARATUS FOR CUTTING WASTE FROM EMBROIDERIES.

APPLICATION HLED "m1. mo.

1,206,946. Patented Dec. 5,1916.

4 SHEETSSHEET 4.

UNITED STATES PATENT onnrcn.

ALOIS TSOHERNE, OF RORSCHACH, SWITZERLAND, ASSIGNOR TO THE FIRM OF HENRI LEVY, OF RORSCHACH, SWITZERLAND.

' Specification of Letters Patent.

Patented Dec. 5, 1916.

Application filed March 1910. Serial N 0. 547,891.

To all whom it may concern:

Be it known that 1, 11mm TSCHERNE, a subject of the Emperor of Austria-Hungary, residing at Rorschach, Hafenplatz, Switzerland, have invented certain new and useful Improvements in Apparatus for Cutting the Waste from Embroideries; and I do hereby declare the following to be a full,

clear, and exact description of the inven-- tion, such as will enable others skilled in the art to which it appertains to make and use the same, reference being had to theaccompanying drawings, and to letters or figures of reference marked thereon, which form a part of this specification.

My invention relates to apparatus for cutting the unembroidered or waste material from the piece of embroidery.

By means of the apparatus forming the subject of the present application the waste can be'cut 0H close along the edge of the embroidery, without there being any danger of the latter getting injured.

The apparatus herein described can be constructed either as a hand cutter, or as a cutting machine. The main feature of both organizations is, that a cutting device, in conjunction with a guard, constitutes a slot which admits the passage of the unembroidered material, so that the cutter can sever the fabric close below theedge of the cmbroidery which is adjacent to the slot. The part of the apparatus which carries the cutting device and the guard is moved relatively to the fabric, either by hand or mechanically, whereby the cutting operation is performed.

My invention is illustrated in the accompanying drawings, in which Figure 1 is a side elevation of a hand cutter. Fig. 2 is a plan of Fig. 1. Fig. 3 is a section on the line A-B of Fig. 2. Figs. 4 and 5 are views showing the cutter in use. Figs. 6 and 7 are cross sections, drawn to a larger scale showing two successive positions of the operative parts. Fig. 8 is side elevation of a cutting machine. Fig. 9 is a plan of Fig. 8. Fig. 10 is a sec tion on the line CD of Fig. 9. Fig. 11 shows a detail to be hereinafter referred to. Fig. 12 is an elevation of the mechanism at the left-hand end of the partly in section. Fig. illustrating the mode in operates.

Referring to Figs. 17, which depict the invention as embodied in a hand cutter, 1 designates a blade, presenting the cross section of a razor, though it might consist of a piece of sheet steel of uniform thickness throughout. The blade is adjustably fastened by screws 4- to the top part of a holder 2. 3. The two parts 2, 3 are connected only at the one end (5, there being a space between them. Along the front edge there is but a small interstice between the two parts 2, 3; whereas at the back these two parts are separated by a large gap, as is seen in Figs. 8, 6 and 7. At the front of the lower part 3 there is adjustably secured by screws 8a plate 9 which is inclined with respect to the blade which serves as guard or opposing member to the latter. The top edge of this plate .9 projects somewhat above the edge 10 of the blade 1. Between the edge 10 and the plate 9 there is a slit 11, the width of which is only such as to allow the unembroidered part 12 of the fabric 14 to pass through, while obstructing passage of the actual embroidery 13. At the front of the top part 2 of the holder there is fitted a fiat spring 15, which tends to bear against the back of the portion of the guard 9 which projects above the part 3 of the holder. The latter is furnished with a handle 15, which in the drawing is shown as being provided on the part 3, though it might be located at another place, for instance, at the part 6.

I will now proceed to describe the operation of the device: The strip of fabric 14 is here shown as being embroidered with festoons 13, and the waste material 12 has to be cut off along the edge of these raised portions at 13. For this purpose the fabric strip 1 1 is drawn in from the side, through the slit 11 and interstice 7 between the parts 2, 3, as shown in Fig. 6. The fabric should preferably be stretched laterally, in such manner that the edge of the embroidery l3 lies close against the edge 10 of the blade 1, as shown in Fig. 7. The spring 15 has machine (Fig. 8), 13 1s a diagram which the machlne is coated consequently the tendency to draw the raised embroidery-edge down upon their '.:posite ends.

cutting' into the edge of the embroidery. now, the device and relatively to each other, the blade 1 wi sever the material close to the edge of the following exactly th as will be seen from; The. arrangement may be such that the fabric is fastened and the cutembroidery, the cut contour of the latter, Figs. 4 and 5.

ter moved along it; or, vice versa, the cutter may be fixed and the fabric drawn past cases.

I will next describe the cutting machine illustrated in Figs. 813: This machine comprises, in tus as above set forth, fabric feeding mechanism and a device for guiding the embroidery in the direction of its length. The feed mechanism likewise serves to stretch the fabric in the direction of its breadth. The feed mechanism advances the embroidered fabric to the blade, and like the latter receives its motion from the main shaft 17, which is mounted in the machine-framing 16, and is driven by any suitable means, such as a motor, belt-pulley, crank-handle, or the like. The feed mechanism has two contiguous, endless bands 20, running over rollers 18, 19. The outer face of these feed bands with emery, and their upper stretches travel over horizontal rails 21. The rails 21 can be adjusted horizontally by means-of a clip 22 on the rods 23, which are vertically adjustable in the sockets 24. The rollers 18 are provided on their periphery with studs 25, engaging in corresponding perforations in the bands 20, whereby the latter can be advanced. These rollers 18 are mounted on a shaft 26, which receives intermittent rotary motion from the shaft 17. For this purpose an eccentric 27 is mounted on the shaft 17, 28 being the eccentric rod, jointed to the one arm 29 of a bent lever, loosely mounted on the shaft 26. The other arm 30 of the bent lever is furnished with a pawl 31 which is held by a spring 32 to the ratchet wheel 33, keyed to the shaft 26. It is obvious that at each rotation of the shaft 17, the shaft 26 will thus be turned through acertain distance, and the bands 20 correspondingly advanced.

Above the rails 21 pressing devices are provided, consisting of endless aprons 34 of felt or the like, passing around shoes 35, whose ends are bent upward and whose face is grooved to receive the apron. Each shoe 35 is jointed at 36 to an arm 37, with capability of horizontal adjustment. Thus, like the rails 21, the shoes can be so set that instead of lying parallel as shown in the drawthe fabric are moved The cutting action is the same in both addition to a cutting apparatmounted by ,tically. The pin 51 provided on a slide 50. The latter can be slid to and fro on a horizontal, in-

the shaft 26, than at the op- The purpose of this will be iereinafter explained. The arms 37 are mounted on a shaft 39, which is supported bv a standard 38 of the machine-fram1ng16.

in order that the aprons 34 may lie upon the bands 20, the arms 37 are pressed down by means of a bolt 42, which passes through a oss-bar 40, lying upon the arms 37, and is provided above the latter with a nut 41. To the one arm 37 there is pivoted an arm 43, actuated by a spring 44, and having susan adjustable lug 46, a frame 47 (see detail view, Fig. 11), which lies between the two aprons 34. A stop 48 bears upon the one arm 37 and prevents the frame 47 from being depressed too far by the spring 44.

The cutter device already described is means of its hand-piece 15, which is inserted into a hole in an arm 49.

The cutter device can thus be turned on the art 15 as axis and can also be adjusted verarm 49 can be adjusted on a clined arm 52. It receives its motion from a vertical shaft 54, having a crank 56, connected to the arm 49 by a rod 55. The shaft 54 is rotated from the main shaft 17 by means of bevel gearing 53. The arm 52 can be adjusted on the socket 57, which serves as bearing for the shaft 54.

The device for guiding the fabric consists of an elongated, horizontal table 58, over which the fabric can be drawn with the aid of the bands 20. Above the table 58 there is a rail 59, which acts as a stop, and is jointed to an arm 61 by means of links 60. This rail 59 is bent at the left-hand end 62 (Fig. 9) toward the middle of the machine. arm 61 itself is adjustably secured to a pin 63, carried by a lever arm 64, which can be depressed. To the pin 63 there is adjustably secured a second arm 65, to which there is jointed by means of links 66, 67, a pressingplate 68, which is forced against the top of the table by a flat spring 69, which is secured to the arm 65 and bears upon the link 66. 7

On the side of the arm 61 opposite to that on which the arm 65 is located, there is adjustably secured to the pin 63 a third arm 70, from which a yoke 72 is suspended by means of a link 71. The yoke 72 carries a fluted cylinder 73, mounted on two centers 74, screwed into the ends of the yoke. The cylinder 73 lies parallel with the stop rail 59 and pressing-plate 68. It is controlled by a flat-spring 75, which is secured to the arm 7 O and bears upon the link 71, whereby the cylinder 73 is pressed against the periphery of a cylindrical brush 76, located parallel with the cylinder 73. This brush is mounted pended from it, by means of a link45 andv The V in bearings 77 below the table 58, and projects through an opening 78 in the latter only so'far above the table, that the highest point of the periphery of the brush registers with the top of the table. The brush receives its rotary motion from the shaft 79, by means of belt-pulleys 80, 81, and a belt 82, the arrow in Fig. 12 denoting the direction of rotation.

The machine operates as follows: The fabric 12, 14, embroidered at 13, is conducted from the left-hand side (Fig. 8) between the bands 20 and aprons 34 and the waste part 12 led through the interstice 7 and slit 11 between the guard 9 and the spring 15. The fabric will at the same time be drawn below the pressing-plate 68 and the part 12 of the fabric will pass under the stop-rail 59 and under the cylinder 73, while the embroidered part 13 will be arrested by the rail 59 and thus remain on the table 58 between the rail and the pressing-plate 68. The endless bands 20 will feed the fabric forward, toward the right, over the table 58, the rail 59 bearing lightly upon the fabric owing to gravity. On the one side of the rail 59 the plate 68 will gently press the fabric upon the table, thus keeping it smooth; while on the opposite side of the rail 59 the fabric will be pressed down upon the brush 76 by the cylinder 73 (Fig. 12). Owing to the rotary motion of the brush, a draft will be exercised upon the fabric in a direction at right angles to the direction of feed. This will result in the edge of the embroidery 13 being held close up against the stop-rail 59, and during the feed will, in moving along, always bear against the latter, being thus gudided by the said rail. Owing to the jointed connections already described, the mechanisms 59, 68, 73, which press on the fabric, can all yield in upward direction, so that there is no danger of the feed being interrupted, and the fabric being rent, through jamming of the latter between the said mechanisms. By depressing the arm 64 with pin 63, the springs 69 and 75 may be given more tension, and the plate 68 and cylinder 73 consequently pressed more firmly upon the fabric. The feed devices 20, 34 cause the fabric to travel toward the right with an intermittent motion. If, new, the rails 21 and shoes 35 are so adjusted as to lie somewhat farther apart on the right than on the left, the fabric 12, 14; will be drawn toward each side, and thus stretched, which facilitates the cutting operation. Thus the feed mechanism seizes and advances both the parts 12 and 14 of the fabric. The intermittent feed toward the cutter takes place at the period when the latter is slid outwardly on the arm 52, wherefore, cutting does not occur. That is to say, the feed occurs at the moment when the cutter is changing from the position shown in Fig. 5 into that shown in Fig. 4. During the interval of rest of the fabric, which succeeds the feed, the cutter travels inwardly on the arm 52, from the position shown in Fig. 4'. into the position shown in Fig. 5, and the embroidery will be cut out, or shaven as with a razor, close to the edge of the part 18. This cutting is effected, in the case of the machine, by the fabric (which lies upon the top edge of the guard 9 and is pressed against the inside of the latter by the spring 15), being guided so near to the edge 10 of the blade 1, when the cutter advances, that the edge of the embroidery 13 presses against the edge 10 of the blade lying approximately in the direction of the guard Thus the fabric is cut off exactly along the edge of the embroidery 13.

Having now particularly described and ascertained the nature of the said invention and in what manner the same is to be performed, I declare that what I claim is:

1. In a cutting apparatus for removing waste from embroidered fabric, an opposing member to support the fabric, a knife support rigidly connected to the opposing member, a knife on the support inclined to and in such relation with the opposing member as to obtain a shaving action on the fabric, said knife and opposing member forming a slot of sufiicient width to permit only the passage of the unembroidered part of the fabric.

2. In a cutting apparatus for removing the waste from embroidery, a straight blade, and a guard mounted longitudinally of the blade parallel therewith, and inclined thereto and projecting somewhat above the edge of the blade whereby a narrow longitudinal slit is formed between the cutter and blade.

3. In a cutting apparatus for removing the waste from embroidery, a holder comprising longitudinal members connected at one end, a knife blade mounted longitudinally on one of said members, means to laterally adjust the blade on its member, a longitudinal guard mounted on the other member at an angle to the blade, and means to laterally adjust the guard.

4. In a cutting apparatus for removing the waste from embroiderics, a straightblade, and a guard located parallel therewith in a plane directed at an angle thereto. and projecting somewhat above the edge of the blade, whereby a narrow slit is presented between cutter and blade, and a flat spring which is located below the slit and acts in the direction of the guard, substantially as described.

5. In a cutting apparatus for removing the waste from embroideries, a handled holder, a cutter mounted longitudinally of the holder, and a guard secured to the latter at an inclination to the cutter and presenting between them a slit which admits passage onlyof the unembroidered part of the fabric, substantially as described.

6. In a cutting apparatus for removing the waste from embroideries, a cutter, and a guard located contiguous therewith, where by a slit is presented which admits passage only of the unembroidered part of the fabric, and means for reciprocating the cutter and guard simultaneously, substantially as described.

7. In a cutting apparatus for removing the waste from embroideries, a cutter, and a guard located contiguous therewith, whereby a slit is presented which admits passage only of the unembroidered part of the fabric,

means for feeding the fabric to the cutter,

and means for reciprocating the cutter and guard in a direction inclined to the direction of feed, substantially as described.

8. In a cutting apparatus for removing the waste from embroideries, a cutter, and a guard located contiguous therewith, whereby a slit is presented which admits passage only of the unembroidered part of the fabric, means for feeding the fabric to the cutter, and means for guiding the fabric in a straight line and means for reciprocating the cutter in a direction inclined to the direction of feed, substantially as described.

9. In a cutting apparatus for removing the waste from embroideries, a cutter, and a guard located contiguous therewith, whereby a slit is presented which admits passage only of the unembroidered part of the fabric, means for feeding the fabric to the cutter, and a rail guiding the fabric in a straight line, an arm from which said rail is pivotally suspended and means for adjusting the vertical distance of the arm from the table, substantially as described.

10. In a cutting apparatus for removing the waste from embroideries, a cutter, and a guard located contiguous therewith, whereby a slit is presented which admits passage only of the unembroidered part of the fabric, means for feeding the fabric to the cutter, and a rail guiding the fabric in a straight line, said rail resting on the fabric under the influence of its own weight and means for reciprocating the cutter in a direction inclined to the direction of feed, substantially as described.

11; In a cutting apparatus for removing the waste from embroideries, a cutter, and a guard located contiguous therewith, whereby a slit is presented which admits passage only of the unembroidered part of the fabric, means for feeding the fabric to the cutter, comprising endless bands, means for pressing the fabric onto said endless bands, and means for horizontally adjusting said means, substantially as described.

12. In a cutting apparatus for removing the waste from embroideries, a cutter, and a guard located contiguous therewith, whereby a slit is presented which admits passage only of the unembroidered part of the fabric, means for feeding the fabric to the cutter, comprising endless bands, shoes coated with endless bands of yielding material, said shoes being adapted to be adjusted horizontally by turning on vertical fulcrums, substantially as described.

13. In a cutting apparatus for removing the waste from embroideries, a cutter, guard located contiguous therewith, whereby a slit is presented which admits passage only of the unembroidered part of the fabric, means for guiding the fabric in a straight line comprising a stop for the embroidered portion of the fabric, and rollers for drawing the embroidered portion against the stop, substantially as described.

14. In a cutting apparatus for removing the waste from embroideries, a cutter, and a guard located contiguous therewith, whereby a slit is presented which admits passage only of the unembroidered part of the fabric, means for guiding the fabric in a straight line, comprising a stop for the embroidered portion of the fabric, a cylindrical brush and a grooved roller cooperating with the cylindrical brush for drawing the embroidered portion against the stop, substantially as described.

15. In a cutting apparatus for removing the waste from embroideries, a cutter, and a guard located contiguous therewith, whereby a slit is presented which admits passage only of the unembroidered part of the fabric, T

means for guiding the fabric in a straight line comprising a stop for the embroidered portion of the fabric, grooved roller cooperating with the cylindrical brush for drawing the embroidered portion against the stops, and means for vertically adjusting the grooved roller, substantially as described.

16. In a cutting apparatus for removing the waste from embroideries, a cutter, and a guard located contiguous therewith, whereby a slit is presented which admits passage only of the unembroidered part of the fabric, means for, guiding the fabric in a straight line comprising a guide rail for the embroidered portion of the fabric, and rollers for drawing the embroidered portion against the stop, and a plate resting on the fabric on the side of the guide rail opposite the rollers and exerting pressure on the fabric, substantially as described.

17. In a cutting apparatus for removing the waste from embroideries, a cutter, and a guard located contiguous therewith, whereby a slit is presented which admits passage only of the unembroidered part of the fabric, means for guiding the fabric in a straight line, comprising a guide rail for the embroidered portion of the fabric, rollers for drawing the embroidered portion against and a a.

a cylindrical brush, a

the guide rail, and a plate resting on the as my invention, I have signed my name in fabric on the side of the gulde rail oppopresence of two subscribing Witnesses.

site the rollers and exertin 3I'8SSllI8 0n the fabric, an arm on which sa id plate is pivot- ALOIS TSGHERNE 5 ally suspended and means to vertically ad- \Vitnesses:

just the arm, substantially as described. RANDALL ATKINSON, In testimony that I claim the foregoing ALBERT PHILLIPS.

Copies of this patent may be obtained for five cents each, by addressing the Commissioner of Patents. Washington, D. G. 

